JPS5590504A - Preparation of unsoluble chitin derivative - Google Patents
Preparation of unsoluble chitin derivativeInfo
- Publication number
- JPS5590504A JPS5590504A JP16139078A JP16139078A JPS5590504A JP S5590504 A JPS5590504 A JP S5590504A JP 16139078 A JP16139078 A JP 16139078A JP 16139078 A JP16139078 A JP 16139078A JP S5590504 A JPS5590504 A JP S5590504A
- Authority
- JP
- Japan
- Prior art keywords
- chitin derivative
- organic acid
- anhydride
- carboxymethylchitin
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
PURPOSE: To obtain unsoluble chitin derivative which is biologically and chemically stable as well as safe and has excellent substance permeability, adsorbability and biological adaptability by treating soluble chitin derivative with an organic acid anhydride.
CONSTITUTION: A soluble chitin derivative such as N-deacetylated product of carboxymethylchitin or carboxymethylchitin salt is reacted with an organic acid anhydride alone or a mixture of an organic acid and an organic acid anhydride. As an organic acid or anhydride, acetic acid, propionic acid, butyric acid, valeric acid or the like or anhydride thereof are preferably used. The N-deacetylation degree of above-described soluble chitin derivative is 10W100%, preferably 20W60%. Carboxymethylchitin or salt thereof have 0.1W1.0, preferably 0.3W1.0 carboxymethyl group per one N-acetylglucosane unit which is a unit structure.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16139078A JPS5590504A (en) | 1978-12-29 | 1978-12-29 | Preparation of unsoluble chitin derivative |
US06/105,250 US4308377A (en) | 1978-12-29 | 1979-12-19 | Shaped material comprising denatured chitin and process for preparing same |
DK553379A DK553379A (en) | 1978-12-29 | 1979-12-21 | CHITINALLY FORMED MATERIALS AND FIVE-METHOD FOR PRODUCING SAME |
CA000342542A CA1148944A (en) | 1978-12-29 | 1979-12-21 | Shaped material comprising denatured chitin and process for preparing same |
EP79303067A EP0013181B1 (en) | 1978-12-29 | 1979-12-28 | Chitin derivative, material comprising said derivative and process for the preparation thereof |
DE7979303067T DE2963863D1 (en) | 1978-12-29 | 1979-12-28 | Chitin derivative, material comprising said derivative and process for the preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16139078A JPS5590504A (en) | 1978-12-29 | 1978-12-29 | Preparation of unsoluble chitin derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5590504A true JPS5590504A (en) | 1980-07-09 |
JPS6144081B2 JPS6144081B2 (en) | 1986-10-01 |
Family
ID=15734174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16139078A Granted JPS5590504A (en) | 1978-12-29 | 1978-12-29 | Preparation of unsoluble chitin derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590504A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56804A (en) * | 1979-06-15 | 1981-01-07 | Kureha Chem Ind Co Ltd | Chitin molding material |
JPS57145813A (en) * | 1981-03-05 | 1982-09-09 | Unitika Ltd | Molded chitinous article for living body |
-
1978
- 1978-12-29 JP JP16139078A patent/JPS5590504A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56804A (en) * | 1979-06-15 | 1981-01-07 | Kureha Chem Ind Co Ltd | Chitin molding material |
JPS57145813A (en) * | 1981-03-05 | 1982-09-09 | Unitika Ltd | Molded chitinous article for living body |
Also Published As
Publication number | Publication date |
---|---|
JPS6144081B2 (en) | 1986-10-01 |
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